Source : Webster's Revised Unabridged Dictionary (1913)

Jaw \Jaw\, n. [A modification of chaw, formed under the
   influence of F. joue the cheek. See {Chaw}, {Chew}.]
   1. (Anat.)
      (a) One of the bones, usually bearing teeth, which form
          the framework of the mouth.
      (b) Hence, also, the bone itself with the teeth and
          covering.
      (c) In the plural, the mouth.

   2. Fig.: Anything resembling the jaw of an animal in form or
      action; esp., pl., the mouth or way of entrance; as, the
      jaws of a pass; the jaws of darkness; the jaws of death.
      --Shak.

   3. (Mach.)
      (a) A notch or opening.
      (b) A notched or forked part, adapted for holding an
          object in place; as, the jaw of a railway-car
          pedestal. See {Axle guard}.
      (b) One of a pair of opposing parts which are movable
          towards or from each other, for grasping or crushing
          anything between them, as, the jaws of a vise, or the
          jaws of a stone-crushing machine.

   4. (Naut.) The inner end of a boom or gaff, hollowed in a
      half circle so as to move freely on a mast.

   5. Impudent or abusive talk. [Slang] --H. Kingsley.

   {Jaw bit} (Railroad), a bar across the jaws of a pedestal
      underneath an axle box.

   {Jaw breaker}, a word difficult to pronounce. [Obs.]

Jaw \Jaw\, v. i. [imp. & p. p. {Jawed}; p. pr. & vb. n.
   {Jawing}.]
   To scold; to clamor. [Law]

Jaw \Jaw\, v. t.
   To assail or abuse by scolding. [Law]

Source : WordNet®

jaw
     v 1: talk socially without exchanging too much information; "the
          men were sitting in the cafe and shooting the breeze"
          [syn: {chew the fat}, {shoot the breeze}, {chat}, {confabulate},
           {confab}, {chitchat}, {chatter}, {chaffer}, {natter}, {gossip},
           {claver}, {visit}]
     2: talk incessantly and tiresomely [syn: {yack}, {yack away}, {rattle
        on}, {yap away}]
     3: chew (food); "He jawed his bubble gum"; "Chew your food and
        don't swallow it!"; "The cows were masticating the grass"
        [syn: {chew}, {masticate}, {manducate}]
     4: censure severely or angrily; "The mother scolded the child
        for entering a stranger's car"; "The deputy ragged the
        Prime Minister"; "The customer dressed down the waiter for
        bringing cold soup" [syn: {call on the carpet}, {rebuke},
        {rag}, {trounce}, {reproof}, {lecture}, {reprimand}, {dress
        down}, {call down}, {scold}, {chide}, {berate}, {bawl out},
         {remonstrate}, {chew out}, {chew up}, {have words}, {lambaste},
         {lambast}]

jaw
     n 1: the part of the skull of a vertebrate that frames the mouth
          and holds the teeth
     2: the bones of the skull that frame the mouth and serve to
        open it; the bones that hold the teeth
     3: holding device consisting of one or both of the opposing
        parts of a tool that close to hold an object [syn: {jaws}]